Quantcast 3-39.   PISTON, CONNECTING ROD, AND BEARING REPAIR

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TM 9-2815-225-34&P 3-39.   PISTON, CONNECTING ROD, AND BEARING REPAIR THIS TASK COVERS: a.  Disassembly c.  Inspection b.  Cleaning d.  Assembly INITIAL SETUP: APPLICABLE MODELS Automotive repairman MOS 63H All REFERENCES (TM) SPECIAL TOOLS None Connecting rod bushing driver (15434) ST-1242 Connecting rod checking fixture (15434) ST- TROUBLESHOOTING REFERENCES 561 Para. 2-8 Connecting rod locating mandrel (15434) ST-563 EQUIPMENT CONDITION Piston ring groove gauge (15434) ST-560 Piston, connecting rod, and bearings removed (para. 3-69). TEST EQUIPMENT SPECIAL ENVIRONMENTAL CONDITIONS None Work area clean and away from blowing dirt and dust. MATERIALS/PARTS Cloth, crocus (Appendix C, Item 4) GENERAL SAFETY INSTRUCTIONS PERSONNEL REQUIRED LOCATION/ITEM ACTION REMARKS Wear rubber gloves when removing piston pin to prevent burns from boiling water or hot piston. NOTE Use this procedure to repair any one of six piston, connecting rod, and bearing assemblies. Quantities shown in legend are for one piston, connecting rod, and bearing assembly. a.  Disassembly 1. Two piston pin retaining Remove from piston (1). rings (3) WARNING Wear rubber gloves when removing piston pin to prevent burns from boiling water or hot piston.  Failure to comply may result in injury to personnel. CAUTION To avoid damage to piston, do not use hammer or any other tool to remove piston pin. 2.   Piston pin (2) and a.  Heat piston (1) 210°F (98.9°C) Use tongs or hook to remove connecting rod (5) for 10 minutes in boiling water or piston from hot water. oven. b.  Push piston pin (2) from piston (1) and connecting rod (5) with 3-174


 


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